    <div id="left_btn">
  <ul class="nav">
    <li class="left_btn-a"> サブメニュー </li>
     <?php foreach ($GLOBALS['GV_WORKING_CAT'] as $id=>$name):?>
      <li class="leftbtn<?php echo $id;?>"><a href="working.php?cat_id=<?php echo $id?>"> <?php echo $name;?><div class="hoverLeftbtn<?php echo $id?>"></div></a></li>
     <?php endforeach;?>
     <li class="left_btn-b"> サブメニュー </li>
  </ul>
</div>